Proto J5853 Socket Adapter 1 in Output Drive Size, Square, 2 1 2 in Overall Lg, Chrome, Locking DC 1NB Stand Load Capacity 500 lb Stand Load Capacity 500 lb Center to Center Roller Spacing 4" Roller Material Galvanized Steel Section Description Portable Frame Finish Powder Coated Jaw Capacity 2 in Handle Material Aluminum Nonsparking No Handle Type I Beam Standards Federal Specification GGG N65IE Ratchets Number of Points 4 Measurement Type SAE Material Alloy Steel Input Drive Gender Female Insulated No Input Drive Shape Square Non Sparking No Corrosion Resistant Yes Output Drive Gender Male Output Drive Shape Square Drive Size 3 4" Overall Length 2 1 2 in Output Drive Size 1" Input Drive Size 3 4 in it securely connects your tools for optimal performance